Chemistry · May / June 2025 · Paper 12 · Question 30
5070The mole and the Avogadro constant
Nitrates and ammonium salts are used as fertilisers. Which fertiliser contains the greatest mass of nitrogen in 50 kg of the compound? [A_r: H, 1; N, 14; O, 16; S, 32; Cl, 35.5; K, 39]
- ANH4Cl
- BNH4NO3
- C(NH4)2SO4
- DKNO3
As printed in the paper
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Correct answer: B. NH4NO3
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